ZenVocab is an offline-first vocabulary and flashcard learning app for Android and iOS. Create decks of words, practice them with flashcards, spelling drills, and quizzes, and track your progress over time — all working fully offline. Optionally sign in with Google to back up and restore your decks via Google Drive.
Last updated: July 12, 2026
This policy explains what data the app handles and how.
All your decks and flashcards are stored locally on your device in a private database. This data is not sent to any server operated by us. We do not run a backend server.
If you choose to sign in with Google and use the backup/restore feature, the app uploads a single backup file containing your decks and cards to a hidden, app-private folder in your own Google Drive account (Google's "appdata" space). This folder is not visible in your regular Drive file list and is only accessible by ZenVocab. We do not have access to this data ourselves — it is stored in your Google account under your control. You can revoke access at any time via your Google Account permissions page.
The app requests internet access solely to perform the optional Google Drive backup/restore described above.
ZenVocab does not knowingly collect data from children. The app does not collect personal data beyond what is described above.
If this policy changes, the updated version will be posted at this URL with a revised date.
Questions about this policy: simplytiful@gmail.com